BMW K bikes (Bricks)


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Heresy23

Heresy23
Silver member
Silver member
So while working on my engine I noticed this taped up wire end...is it a accessory plug in (like heated suits etc...)? Ipmy first k bike so I’m learning...i know my battery tender is in the other side of the bike Accessories plug? Need help identifying  Da7b6610
Accessories plug? Need help identifying  399b5c10

    

brickrider2

brickrider2
Life time member
Life time member
It's always a good idea to identify the motorcycle you are working on.  Smile


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1996 K1100LT
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
brickrider2 wrote:It's always a good idea to identify the motorcycle you are working on.  Smile
Excellent idea!  Take a few minutes to put your bike's model and year in the signature line.  It really helps us identify what we are commenting on when giving assistance and troubleshooting tips.

The connector you are holding looks like it is the high altitude plug.  There is a matching connector with a short loop of wire that you plug in when riding above 4000 feet of altitude.  It tells the Jetronic to lean out the fuel mix to compensate for the thinner air at high altitudes. 

The only time I use mine is when I'm out West in the mountains.  I have forgotten to plug in at 6-7,000 feet and left it in down to almost sea level and honestly haven't noticed any ill effects on the performance of my K75RT.  I suspect it's more of a clean air function to meet EPA requirements than anything to improve performance.


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Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

duck

duck
Life time member
Life time member
The biggest difference I've noticed without the altitude plug is that the bike starts to idle like crap when you get up above 8,000 feet and will die if you try to idle at 10,000 feet.


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

Heresy23

Heresy23
Silver member
Silver member
Thanks.!!i live at a altitude of around 2500 ft so no worries on that note
Oh and it’s a 85 K100RT ...😃

    

Laitch

Laitch
Life time member
Life time member
Heresy23 wrote:Oh and it’s a 85 K100RT ...😃
Click on the Signature tab at the top of the page then put that information in your signature so it will show up as a reference below every post you make from now until the end of the world, as Point-Seven-five suggests.


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1995 K75 90,000 miles
    

Heresy23

Heresy23
Silver member
Silver member
Ok let’s see , think I got it now ..


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85’k100 RT 73k
    

Heresy23

Heresy23
Silver member
Silver member
I put the miles in too , good idea ....I always got lots of questions !!


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85’k100 RT 73k
    

ffbikersa

ffbikersa
Platinum member
Platinum member
Laitch wrote:
Heresy23 wrote:Oh and it’s a 85 K100RT ...😃
Click on the Signature tab at the top of the page then put that information in your signature so it will show up as a reference below every post you make from now until the end of the world, as Point-Seven-five suggests.
 Apparently this plug was installed only on bikes built prior to 1986, and just for the US market. with the later ones ECU adjusted for the different altitudes (and what were European buyers doing, no idea)

    

duck

duck
Life time member
Life time member
No, it's on US K bikes from all years.  The only exception is that the small number police Ks sold in the US don't have it. (I assume because they use the same police wiring harness as non-US K bikes.)


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

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